Variations V4
30s preview
- Key
- 8B · C major
- BPM
- 138
- Open Key
- 1d
- Energy
- 74/100
- Pop
- 0/100
- Length
- 9:41
- Released
- 2021
- Genre
- Techno
- Loudness
- -9.3 dB
- Dynamics
- 15.2 dB
- ISRC
- GBLTF2100004
Key, BPM and audio features: model-based audio analysis · how we measure · catalogue updated July 2026
At 138 BPM in C major (8B), Variations V4 is a driving up-tempo techno production. It reads as dark and driving. The mix is almost entirely instrumental. Its spectrum is centred in the low-mids, warm and bass-forward. The master keeps unusual dynamic range for club music (crest 15 dB). More underground than 99% of Radio Slave's catalogue. For programming, treat it as a mid-set roller.
- Tempo:
- faster than 95% of Radio Slave's catalogue
- Brightness:
- darker than 93% of Radio Slave's catalogue
- Low end:
- more treble-tilted than 93% of Radio Slave's catalogue
Sonic profile
Frequency spectrum
amplitude · bass → treble
- 22%
- Low
- 30-130 Hz
- 40%
- Low-mid
- 130-570 Hz
- 32%
- Upper-mid
- 570 Hz-2.5 kHz
- 6%
- High
- 2.5-11 kHz
FAQ
What key is Variations V4 in?
Variations V4 by Radio Slave is in C major, or 8B on the Camelot wheel.
What BPM is Variations V4?
Variations V4 runs at 138 BPM, a driving up-tempo track.
What mixes well with Variations V4?
From 8B it blends harmonically with 9B, 8A, 7B. Moving to 9B lifts the energy a step.
Is Variations V4 good for peak time?
With energy 74 out of 100 at 138 BPM, it works best as a mid-set roller.
Mixes harmonically
8B → 7B · 9B · 8AFrom 8B, 9B (G major) lifts the energy a step; 8A (A minor) settles into the relative minor; 7B (F major) cools the energy down a step.
How to mix it
In 8B at 138 BPM: 9B (G major) — move to 9B to push the floor harder; 8A (A minor) — switch to 8A for a mood change without losing the groove; 7B (F major) — drop to 7B to bring the room down gently.
Pitch range at ±6%: 130-146 BPM — anything in that window beatmatches without sounding stretched.
Key on the fader: without key lock (Master Tempo on CDJs), above roughly +5% it plays a semitone higher, so treat it as 3B rather than 8B; below -5% it reads as 1B. With key lock on, it stays 8B across the whole range.
Programming: a mid-set roller.
Similar tempo
Within ±3 BPM of 138 — beatmatch without a big tempo pull.
More techno
More from Radio Slave
Full profile
Other recommendations
Beyond strict key and genre matches: tracks that still sit in beatmatch range of 138 BPM with a compatible energy and groove — candidates for a key jump or a genre crossover.
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